14 is("\Q$a\E." , "HELLO\\.\\*\\ world.", '\Q\E HELLO.* world');
15 is("\u$a" , "HELLO\.\* world", '\u');
16 is("\l$a" , "hELLO\.\* world", '\l');
17 is("\U$a" , "HELLO\.\* WORLD", '\U');
18 is("\L$a" , "hello\.\* world", '\L');
20 is(quotemeta($a) , "HELLO\\.\\*\\ world", 'quotemeta');
21 is(ucfirst($a) , "HELLO\.\* world", 'ucfirst');
22 is(lcfirst($a) , "hELLO\.\* world", 'lcfirst');
23 is(uc($a) , "HELLO\.\* WORLD", 'uc');
24 is(lc($a) , "hello\.\* world", 'lc');
26 is("\Q$b\E." , "hello\\.\\*\\ WORLD.", '\Q\E hello.* WORLD');
27 is("\u$b" , "Hello\.\* WORLD", '\u');
28 is("\l$b" , "hello\.\* WORLD", '\l');
29 is("\U$b" , "HELLO\.\* WORLD", '\U');
30 is("\L$b" , "hello\.\* world", '\L');
32 is(quotemeta($b) , "hello\\.\\*\\ WORLD", 'quotemeta');
33 is(ucfirst($b) , "Hello\.\* WORLD", 'ucfirst');
34 is(lcfirst($b) , "hello\.\* WORLD", 'lcfirst');
35 is(uc($b) , "HELLO\.\* WORLD", 'uc');
36 is(lc($b) , "hello\.\* world", 'lc');
38 # \x{100} is LATIN CAPITAL LETTER A WITH MACRON; its bijective lowercase is
39 # \x{101}, LATIN SMALL LETTER A WITH MACRON.
41 $a = "\x{100}\x{101}Aa";
42 $b = "\x{101}\x{100}aA";
44 is("\Q$a\E." , "\x{100}\x{101}Aa.", '\Q\E \x{100}\x{101}Aa');
45 is("\u$a" , "\x{100}\x{101}Aa", '\u');
46 is("\l$a" , "\x{101}\x{101}Aa", '\l');
47 is("\U$a" , "\x{100}\x{100}AA", '\U');
48 is("\L$a" , "\x{101}\x{101}aa", '\L');
50 is(quotemeta($a) , "\x{100}\x{101}Aa", 'quotemeta');
51 is(ucfirst($a) , "\x{100}\x{101}Aa", 'ucfirst');
52 is(lcfirst($a) , "\x{101}\x{101}Aa", 'lcfirst');
53 is(uc($a) , "\x{100}\x{100}AA", 'uc');
54 is(lc($a) , "\x{101}\x{101}aa", 'lc');
56 is("\Q$b\E." , "\x{101}\x{100}aA.", '\Q\E \x{101}\x{100}aA');
57 is("\u$b" , "\x{100}\x{100}aA", '\u');
58 is("\l$b" , "\x{101}\x{100}aA", '\l');
59 is("\U$b" , "\x{100}\x{100}AA", '\U');
60 is("\L$b" , "\x{101}\x{101}aa", '\L');
62 is(quotemeta($b) , "\x{101}\x{100}aA", 'quotemeta');
63 is(ucfirst($b) , "\x{100}\x{100}aA", 'ucfirst');
64 is(lcfirst($b) , "\x{101}\x{100}aA", 'lcfirst');
65 is(uc($b) , "\x{100}\x{100}AA", 'uc');
66 is(lc($b) , "\x{101}\x{101}aa", 'lc');
68 # \x{DF} is LATIN SMALL LETTER SHARP S, its uppercase is SS or \x{53}\x{53};
69 # \x{149} is LATIN SMALL LETTER N PRECEDED BY APOSTROPHE, its uppercase is
70 # \x{2BC}\x{E4} or MODIFIER LETTER APOSTROPHE and N.
72 # In EBCDIC \x{DF} is LATIN SMALL LETTER Y WITH DIAERESIS,
73 # and it's uppercase is \x{178}, LATIN CAPITAL LETTER Y WITH DIAERESIS.
75 if (ord("A") == 193) { # EBCDIC
76 is("\U\x{DF}aB\x{149}cD" , "\x{178}AB\x{2BC}NCD",
77 "multicharacter uppercase");
78 } elsif (ord("A") == 65) {
79 is("\U\x{DF}aB\x{149}cD" , "SSAB\x{2BC}NCD",
80 "multicharacter uppercase");
82 fail("what is your encoding?");
85 # The \x{DF} is its own lowercase, ditto for \x{149}.
86 # There are no single character -> multiple characters lowercase mappings.
88 if (ord("A") == 193) { # EBCDIC
89 is("\LaB\x{149}cD" , "ab\x{149}cd",
90 "multicharacter lowercase");
91 } elsif (ord("A") == 65) {
92 is("\L\x{DF}aB\x{149}cD" , "\x{DF}ab\x{149}cd",
93 "multicharacter lowercase");
95 fail("what is your encoding?");
98 # titlecase is used for \u / ucfirst.
100 # \x{587} is ARMENIAN SMALL LIGATURE ECH YIWN and its titlecase is
101 # \x{535}\x{582} ARMENIAN CAPITAL LETTER ECH + ARMENIAN SMALL LETTER YIWN
102 # while its lowercase is
104 # and its uppercase is
105 # \x{535}\x{552} ARMENIAN CAPITAL LETTER ECH + ARMENIAN CAPITAL LETTER YIWN
109 is("\L\x{587}" , "\x{587}", "ligature lowercase");
110 is("\u\x{587}" , "\x{535}\x{582}", "ligature titlecase");
111 is("\U\x{587}" , "\x{535}\x{552}", "ligature uppercase");
113 # mktables had problems where many-to-one case mappings didn't work right.
114 # The lib/unifold.t should give the fourth folding, "casefolding", a good
117 is(lc("\x{1C4}") , "\x{1C6}", "U+01C4 lc is U+01C6");
118 is(lc("\x{1C5}") , "\x{1C6}", "U+01C5 lc is U+01C6, too");
120 is(ucfirst("\x{3C2}") , "\x{3A3}", "U+03C2 ucfirst is U+03A3");
121 is(ucfirst("\x{3C3}") , "\x{3A3}", "U+03C3 ucfirst is U+03A3, too");
123 is(uc("\x{1C5}") , "\x{1C4}", "U+01C5 uc is U+01C4");
124 is(uc("\x{1C6}") , "\x{1C4}", "U+01C6 uc is U+01C4, too");
126 # #18107: A host of bugs involving [ul]c{,first}. AMS 20021106
127 $a = "\x{3c3}foo.bar"; # \x{3c3} == GREEK SMALL LETTER SIGMA.
128 $b = "\x{3a3}FOO.BAR"; # \x{3a3} == GREEK CAPITAL LETTER SIGMA.
130 ($c = $b) =~ s/(\w+)/lc($1)/ge;
131 is($c , $a, "Using s///e to change case.");
133 ($c = $a) =~ s/(\w+)/uc($1)/ge;
134 is($c , $b, "Using s///e to change case.");
136 ($c = $b) =~ s/(\w+)/lcfirst($1)/ge;
137 is($c , "\x{3c3}FOO.bAR", "Using s///e to change case.");
139 ($c = $a) =~ s/(\w+)/ucfirst($1)/ge;
140 is($c , "\x{3a3}foo.Bar", "Using s///e to change case.");
142 # #18931: perl5.8.0 bug in \U..\E processing
143 # Test case from Nick Clark.
149 is(uc($1), "ABCDEFGH", "[perl #18931]");
156 $a =~ s/^(\s*)(\w*)/$1\u$2/;
157 is($a, v10, "[perl #18857]");